I am sitting here listening to slayer while reading your post and I just heard what you're talking about. Really strange up and down slightly muffed sound. And I found a fix already. It is the stock music app. I pulled up the same song on the amazon mp3 player and it doesn't do it. Give that a try. Google music doesn't do it either.

I am sitting here listening to slayer while reading your post and I just heard what you're talking about. Really strange up and down slightly muffed sound. And I found a fix already. It is the stock music app. I pulled up the same song on the amazon mp3 player and it doesn't do it. Give that a try. Google music doesn't do it either.

Mine was doing it with Pandora, Poweramp and Stock player though.

The thing is when I took it in just before close last night the guy said to me "You're the second one today"

They even plugged in headphones to test it and agreed this does not sound like the demo unit.